---
product_id: 13634460
title: "LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt"
brand: "ledvance"
price: "฿653"
currency: THB
in_stock: true
reviews_count: 13
category: "Ledvance"
url: https://www.desertcart.co.th/products/13634460-ledvance-21135-compact-fluorescent-2-pin-single-tube-5000k-13
store_origin: TH
region: Thailand
---

# 10,000 hours long-lasting life 5000K crisp daylight color 13W energy-efficient power LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt

**Brand:** ledvance
**Price:** ฿653
**Availability:** ✅ In Stock

## Summary

> 💡 Light up your life with efficiency and style—don’t get left in the dark!

## Quick Answers

- **What is this?** LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt by ledvance
- **How much does it cost?** ฿653 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/13634460-ledvance-21135-compact-fluorescent-2-pin-single-tube-5000k-13)

## Best For

- ledvance enthusiasts

## Why This Product

- Trusted ledvance brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Compatibility:** Fits standard 2-pin magnetic ballast fixtures for easy, no-fuss upgrades—get back to work faster.
- • **Endurance You Can Trust:** Designed to last 10,000 hours, this lamp keeps your environment lit longer, reducing replacements and hassle.
- • **Energy-Smart Efficiency:** Consumes just 13 watts while delivering the brightness of a 60W incandescent—save on your energy bills without compromise.
- • **True-to-Life Color Rendering:** 82 CRI ensures colors pop naturally, perfect for professional settings where detail matters.
- • **Brilliant Daylight Brightness:** Illuminate your workspace with 800 lumens of crisp, clear light that boosts focus and productivity.

## Overview

The LEDVANCE 21135 is a 13-watt compact fluorescent lamp featuring a 2-pin base and a daylight 5000K color temperature. Delivering 800 lumens with an 82 CRI, it offers bright, natural light ideal for professional and home environments. With a lifespan of 10,000 hours and compatibility with magnetic ballasts, it combines energy efficiency and durability for a smart lighting upgrade.

## Description

Sylvania 21135 DULUX 13W single compact fluorescent lamp with 2-pin base, 5000K color temperature, 82 CRI, ECOLOGIC for use on magnetic ballast

Review: I can see clearly now! - My desk lamp is back working. Bright white is way better than the soft white I use to have. High quality at a great price.
Review: Tip: Re-size the picture on your phone or tablet to determine the size you need. - I knew I needed a 13 watt tube because it was clearly stated on the base of the tube I was replacing. But I know from past experience that isn't always the case. So I confirmed this was the right tube by viewing and resizing the picture on a tablet until it matched up to the tube that was being replaced. Here are the measurements as close as I can tell: The length of the two u-shaped tubes is 2 15/16" from the ceramic base to the top of the tube. The rounded square, ceramic base measures 1 5/16" across by about 3/4" deep (including the smaller portion of the base to which the prongs are attached). The brass prongs are 1/4" long, and the plastic, pronged fitting at the bottom is 7/8" long by about 1/2" wide. This tube replaced a Sylvania Dulux D 13W CF13DD/827 that had itself probably been a replacement tube. It was purchased for a solitary recessed fixture in our kitchen. (We also have five bright, recessed LEDs when we need lots of light, and a 14" Solatube with nightlight that provides sufficient daylight, and a small amount of night light when properly charged by the sun). The tube I purchased is a 3000k because I don't need a lot of light from that fixture. If you need more light then you might want to go higher. The new tube fit into the fixture quite firmly with a only a small amount of persuasion. It flickers for a brief second when turned on, then stays on and provides enough light for a quick visit to the kitchen when the night light is too dim and the five LEDs are too much. It makes a fine replacement for the previous tube.

## Features

- 13 Watts of energy
- 800 Lumens of brightness
- 5000 Kelvin color temperature
- 10000 Hours

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005SQYIIQ |
| Accepted Voltage Frequency | 100 to 120 Volts and 60 Hertz |
| Additional Features | CFL |
| Best Sellers Rank | #47,963 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #269 in Fluorescent Tubes |
| Brand Name | LEDVANCE |
| Brightness | 800 |
| Bulb Base | GU5.3 |
| Color Rendering Index | 82 |
| Color Temperature | 5000 Kelvin |
| Control Method | App |
| Controller Type | Push Button |
| Customer Reviews | 4.4 4.4 out of 5 stars (992) |
| Efficiency | 61.54 lumens per watt |
| Global Trade Identification Number | 00046135211355 |
| Incandescent Equivalent Wattage | 60 Watts |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions W x H | 1.3"W x 7.1"H |
| Light Color | daylight |
| Light Source Operating Life | 10000 Hours |
| Light Source Type | Compact Fluorescent Light (CFL) |
| Light Source Wattage | 13 Watts |
| Light Type | CFL, Fluorescent |
| Manufacturer | LEDVANCE LLC |
| Material Type | Glass, Metal |
| Model Name | Twin Tube CFLs |
| Model Number | 21135 |
| Number of Items | 1 |
| Package Quantity | 1 |
| Power Consumption | 13 Watts |
| Power Source | AC |
| Shape | T4 |
| Specific Uses For Product | Lamp |
| Specification Met | Energy Efficiency Standard |
| UPC | 046135211355 885705367623 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Wattage | 13 watts |
| White Brightness | 800 Lumens |

## Product Details

- **Brand:** LEDVANCE
- **Bulb Base:** GU5.3
- **Light Type:** CFL, Fluorescent
- **Special Feature:** CFL
- **Wattage:** 13 watts

## Images

![LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt - Image 1](https://m.media-amazon.com/images/I/51Ako5CUkzL.jpg)
![LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt - Image 2](https://m.media-amazon.com/images/I/41RDAeiFqVL.jpg)
![LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt - Image 3](https://m.media-amazon.com/images/I/51Mjj45hISL.jpg)
![LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt - Image 4](https://m.media-amazon.com/images/I/51f7joXB2uL.jpg)
![LEDVANCE 21135 Compact Fluorescent 2 Pin Single Tube 5000K, 13-watt - Image 5](https://m.media-amazon.com/images/I/41tqXmMWVoL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I can see clearly now!
*by B***E on November 26, 2025*

My desk lamp is back working. Bright white is way better than the soft white I use to have. High quality at a great price.

### ⭐⭐⭐⭐⭐ Tip: Re-size the picture on your phone or tablet to determine the size you need.
*by E***J on December 28, 2017*

I knew I needed a 13 watt tube because it was clearly stated on the base of the tube I was replacing. But I know from past experience that isn't always the case. So I confirmed this was the right tube by viewing and resizing the picture on a tablet until it matched up to the tube that was being replaced. Here are the measurements as close as I can tell: The length of the two u-shaped tubes is 2 15/16" from the ceramic base to the top of the tube. The rounded square, ceramic base measures 1 5/16" across by about 3/4" deep (including the smaller portion of the base to which the prongs are attached). The brass prongs are 1/4" long, and the plastic, pronged fitting at the bottom is 7/8" long by about 1/2" wide. This tube replaced a Sylvania Dulux D 13W CF13DD/827 that had itself probably been a replacement tube. It was purchased for a solitary recessed fixture in our kitchen. (We also have five bright, recessed LEDs when we need lots of light, and a 14" Solatube with nightlight that provides sufficient daylight, and a small amount of night light when properly charged by the sun). The tube I purchased is a 3000k because I don't need a lot of light from that fixture. If you need more light then you might want to go higher. The new tube fit into the fixture quite firmly with a only a small amount of persuasion. It flickers for a brief second when turned on, then stays on and provides enough light for a quick visit to the kitchen when the night light is too dim and the five LEDs are too much. It makes a fine replacement for the previous tube.

### ⭐⭐⭐⭐⭐ Very cool and a lot easier than shopping locally
*by N***M on October 25, 2025*

Works exactly as advertised. Very convenient to buy from Amazon rather than from a local plumbing and electrical store and cheaper than them too… I checked

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-25*